This is totally unimportant, except to Geeks like Me who find this outrageous.
So it's been confirmed, George Lucas is once again changing the original trilogy. This time, he's making Darth Vader say "NOOOOOO!" when he throws the Emperor down the shaft. Before, Vader was silent.
I've known enough artists to know a few that are never completely happy with their work, but they do know enough to put the brush down and call it done, so to speak. George Lucas seems to have a need to constantly tinker and change even twenty years afterwards. Honestly, don't mess with success. The movies were great as they were. Let them stay that way.